Just while using Facebook.com, use these Shortcut Keys For Facebook as shown in the table
Shift+Alt+0 : facebook help center
Shift+Alt+1 : facebook homepage
Shift+Alt+2 : your facebook profile page
Shift+Alt+3 : friend request
Shift+Alt+4 : messages
Shift+Alt+5 : notification
Shift+Alt+6 : account page
Shift+Alt+7 : privacy setting
Shift+Alt+8 : facebook's page on facebook
Shift+Alt+9 : facebook terms of use
Shift+Alt+? : enable search
Shift+Alt+m : compose a new message
